Deforestation- textbook check

What is the major determinant in classifying forests?

• climate

• longitude

• humans

• altitude

What proportion of forests are found in the tropics?

• about three quarters

• about one third

• about half

• about three quarters

Which term best describes a forest that is mostly 'intact' or has 'old growth'?

• secondary forest

• primary forest

• tertiary forest

• plantation

Which term best describes forest that has native species but has been relatively disturbed by human activity such as replanting?

• secondary forest

• primary forest

• tertiary forest

• plantation

Which term best describes an area of trees planted for commercial purposes?

• primary forest

• secondary forest

• tertiary forest

• plantation

During the LGM, when the earth was colder and more arid and sea levels were at least 100m lower, what was the distribution of forests and other biomes like?

• more extensive than today, less desert and grassland

• less extensive than today, more grasslands, desert and tundra

• the same as present day

• there was only extreme desert present

Which of these best describes forest cover during the HCO 8000 years ago when approx 5 million people lived on Earth?

• forests expanded poleward due to warmer and wetter conditions

• forests expanded into higher altitudes

• 47% of Earth covered by forest

• all of the above

The causes of deforestation between the LGM and HCO is best attributed to:

• a combination of natural processes and human activities

• human activities

• natural processes

• political factors

When did the impact of human activities really start to take effect on global forests?

• during the Industrial Revolution

• post WW2

• during the Agricultural Revolution

• from 1960s

Which of these systems of forest management would have the largest impact on changing the land cover?

• selection

• group selection

• seed tree retention

• clearfelling